*/
#include <common.h>
+#include <asm/arch/hardware.h>
#include <asm/omap_common.h>
#include <dm/uclass.h>
#include <i2c.h>
return 0;
}
+static int ti_i2c_eeprom_am6_parse_record(struct ti_am6_eeprom_record *record,
+ struct ti_am6_eeprom *ep,
+ char **mac_addr,
+ u8 mac_addr_max_cnt,
+ u8 *mac_addr_cnt)
+{
+ switch (record->header.id) {
+ case TI_AM6_EEPROM_RECORD_BOARD_INFO:
+ if (record->header.len != sizeof(record->data.board_info))
+ return -EINVAL;
+
+ if (!ep)
+ break;
+
+ /* Populate (and clean, if needed) the board name */
+ strlcpy(ep->name, record->data.board_info.name,
+ sizeof(ep->name));
+ ti_eeprom_string_cleanup(ep->name);
+
+ /* Populate selected other fields from the board info record */
+ strlcpy(ep->version, record->data.board_info.version,
+ sizeof(ep->version));
+ strlcpy(ep->software_revision,
+ record->data.board_info.software_revision,
+ sizeof(ep->software_revision));
+ strlcpy(ep->serial, record->data.board_info.serial,
+ sizeof(ep->serial));
+ break;
+ case TI_AM6_EEPROM_RECORD_MAC_INFO:
+ if (record->header.len != sizeof(record->data.mac_info))
+ return -EINVAL;
+
+ if (!mac_addr || !mac_addr_max_cnt)
+ break;
+
+ *mac_addr_cnt = ((record->data.mac_info.mac_control &
+ TI_AM6_EEPROM_MAC_ADDR_COUNT_MASK) >>
+ TI_AM6_EEPROM_MAC_ADDR_COUNT_SHIFT) + 1;
+
+ /*
+ * The EEPROM can (but may not) hold a very large amount
+ * of MAC addresses, by far exceeding what we want/can store
+ * in the common memory array, so only grab what we can fit.
+ * Note that a value of 0 means 1 MAC address, and so on.
+ */
+ *mac_addr_cnt = min(*mac_addr_cnt, mac_addr_max_cnt);
+
+ memcpy(mac_addr, record->data.mac_info.mac_addr,
+ *mac_addr_cnt * TI_EEPROM_HDR_ETH_ALEN);
+ break;
+ case 0x00:
+ /* Illegal value... Fall through... */
+ case 0xFF:
+ /* Illegal value... Something went horribly wrong... */
+ return -EINVAL;
+ default:
+ pr_warn("%s: Ignoring record id %u\n", __func__,
+ record->header.id);
+ }
+
+ return 0;
+}
+
+int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr,
+ struct ti_am6_eeprom *ep,
+ char **mac_addr,
+ u8 mac_addr_max_cnt,
+ u8 *mac_addr_cnt)
+{
+ struct udevice *dev;
+ struct udevice *bus;
+ unsigned int eeprom_addr;
+ struct ti_am6_eeprom_record_board_id board_id;
+ struct ti_am6_eeprom_record record;
+ int rc;
+
+ /* Initialize with a known bad marker for i2c fails.. */
+ memset(ep, 0, sizeof(*ep));
+ ep->header = TI_DEAD_EEPROM_MAGIC;
+
+ /* Read the board ID record which is always the first EEPROM record */
+ rc = ti_i2c_eeprom_get(bus_addr, dev_addr, TI_EEPROM_HEADER_MAGIC,
+ sizeof(board_id), (uint8_t *)&board_id);
+ if (rc)
+ return rc;
+
+ if (board_id.header.id != TI_AM6_EEPROM_RECORD_BOARD_ID) {
+ pr_err("%s: Invalid board ID record!\n", __func__);
+ return -EINVAL;
+ }
+
+ /* Establish DM handle to board config EEPROM */
+ rc = uclass_get_device_by_seq(UCLASS_I2C, bus_addr, &bus);
+ if (rc)
+ return rc;
+ rc = i2c_get_chip(bus, dev_addr, 1, &dev);
+ if (rc)
+ return rc;
+
+ ep->header = TI_EEPROM_HEADER_MAGIC;
+
+ /* Ready to parse TLV structure. Initialize variables... */
+ *mac_addr_cnt = 0;
+
+ /*
+ * After the all-encompassing board ID record all other records follow
+ * a TLV-type scheme. Point to the first such record and then start
+ * parsing those one by one.
+ */
+ eeprom_addr = sizeof(board_id);
+
+ while (true) {
+ rc = dm_i2c_read(dev, eeprom_addr, (uint8_t *)&record.header,
+ sizeof(record.header));
+ if (rc)
+ return rc;
+
+ /*
+ * Check for end of list marker. If we reached it don't go
+ * any further and stop parsing right here.
+ */
+ if (record.header.id == TI_AM6_EEPROM_RECORD_END_LIST)
+ break;
+
+ eeprom_addr += sizeof(record.header);
+
+ debug("%s: dev_addr=0x%02x header.id=%u header.len=%u\n",
+ __func__, dev_addr, record.header.id,
+ record.header.len);
+
+ /* Read record into memory if it fits */
+ if (record.header.len <= sizeof(record.data)) {
+ rc = dm_i2c_read(dev, eeprom_addr,
+ (uint8_t *)&record.data,
+ record.header.len);
+ if (rc)
+ return rc;
+
+ /* Process record */
+ rc = ti_i2c_eeprom_am6_parse_record(&record, ep,
+ mac_addr,
+ mac_addr_max_cnt,
+ mac_addr_cnt);
+ if (rc) {
+ pr_err("%s: EEPROM parsing error!\n", __func__);
+ return rc;
+ }
+ } else {
+ /*
+ * We may get here in case of larger records which
+ * are not yet understood.
+ */
+ pr_err("%s: Ignoring record id %u\n", __func__,
+ record.header.id);
+ }
+
+ eeprom_addr += record.header.len;
+ }
+
+ return 0;
+}
+
+int __maybe_unused ti_i2c_eeprom_am6_get_base(int bus_addr, int dev_addr)
+{
+ struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+ int ret;
+
+ /*
+ * Always execute EEPROM read by not allowing to bypass it during the
+ * first invocation of SPL which happens on the R5 core.
+ */
+#if !(defined(CONFIG_SPL_BUILD) && defined(CONFIG_CPU_V7R))
+ if (ep->header == TI_EEPROM_HEADER_MAGIC) {
+ debug("%s: EEPROM has already been read\n", __func__);
+ return 0;
+ }
+#endif
+
+ ret = ti_i2c_eeprom_am6_get(bus_addr, dev_addr, ep,
+ (char **)ep->mac_addr,
+ AM6_EEPROM_HDR_NO_OF_MAC_ADDR,
+ &ep->mac_addr_cnt);
+ return ret;
+}
+
bool __maybe_unused board_ti_is(char *name_tag)
{
struct ti_common_eeprom *ep = TI_EEPROM_DATA;
env_set("board_serial", unknown);
}
+void __maybe_unused set_board_info_env_am6(char *name)
+{
+ char *unknown = "unknown";
+ struct ti_am6_eeprom *ep = TI_AM6_EEPROM_DATA;
+
+ if (name)
+ env_set("board_name", name);
+ else if (ep->name)
+ env_set("board_name", ep->name);
+ else
+ env_set("board_name", unknown);
+
+ if (ep->version)
+ env_set("board_rev", ep->version);
+ else
+ env_set("board_rev", unknown);
+
+ if (ep->software_revision)
+ env_set("board_software_revision", ep->software_revision);
+ else
+ env_set("board_software_revision", unknown);
+
+ if (ep->serial)
+ env_set("board_serial", ep->serial);
+ else
+ env_set("board_serial", unknown);
+}
+
static u64 mac_to_u64(u8 mac[6])
{
int i;
char mac_addr[TI_EEPROM_HDR_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
} __attribute__ ((__packed__));
+/* AM6x TI EVM EEPROM Definitions */
+#define TI_AM6_EEPROM_RECORD_BOARD_ID 0x01
+#define TI_AM6_EEPROM_RECORD_BOARD_INFO 0x10
+#define TI_AM6_EEPROM_RECORD_DDR_INFO 0x11
+#define TI_AM6_EEPROM_RECORD_DDR_SPD 0x12
+#define TI_AM6_EEPROM_RECORD_MAC_INFO 0x13
+#define TI_AM6_EEPROM_RECORD_END_LIST 0xFE
+
+/*
+ * Common header for AM6x TI EVM EEPROM records. Used to encapsulate the config
+ * EEPROM in its entirety as well as for individual records contained within.
+ */
+struct ti_am6_eeprom_record_header {
+ u8 id;
+ u16 len;
+} __attribute__ ((__packed__));
+
+/* AM6x TI EVM EEPROM board ID structure */
+struct ti_am6_eeprom_record_board_id {
+ u32 magic_number;
+ struct ti_am6_eeprom_record_header header;
+} __attribute__ ((__packed__));
+
+/* AM6x TI EVM EEPROM board info structure */
+#define AM6_EEPROM_HDR_NAME_LEN 16
+#define AM6_EEPROM_HDR_VERSION_LEN 2
+#define AM6_EEPROM_HDR_PROC_NR_LEN 4
+#define AM6_EEPROM_HDR_VARIANT_LEN 2
+#define AM6_EEPROM_HDR_PCB_REV_LEN 2
+#define AM6_EEPROM_HDR_SCH_BOM_REV_LEN 2
+#define AM6_EEPROM_HDR_SW_REV_LEN 2
+#define AM6_EEPROM_HDR_VID_LEN 2
+#define AM6_EEPROM_HDR_BLD_WK_LEN 2
+#define AM6_EEPROM_HDR_BLD_YR_LEN 2
+#define AM6_EEPROM_HDR_4P_NR_LEN 6
+#define AM6_EEPROM_HDR_SERIAL_LEN 4
+
+struct ti_am6_eeprom_record_board_info {
+ char name[AM6_EEPROM_HDR_NAME_LEN];
+ char version[AM6_EEPROM_HDR_VERSION_LEN];
+ char proc_number[AM6_EEPROM_HDR_PROC_NR_LEN];
+ char variant[AM6_EEPROM_HDR_VARIANT_LEN];
+ char pcb_revision[AM6_EEPROM_HDR_PCB_REV_LEN];
+ char schematic_bom_revision[AM6_EEPROM_HDR_SCH_BOM_REV_LEN];
+ char software_revision[AM6_EEPROM_HDR_SW_REV_LEN];
+ char vendor_id[AM6_EEPROM_HDR_VID_LEN];
+ char build_week[AM6_EEPROM_HDR_BLD_WK_LEN];
+ char build_year[AM6_EEPROM_HDR_BLD_YR_LEN];
+ char board_4p_number[AM6_EEPROM_HDR_4P_NR_LEN];
+ char serial[AM6_EEPROM_HDR_SERIAL_LEN];
+} __attribute__ ((__packed__));
+
+/* Memory location to keep a copy of the AM6 board info record */
+#define TI_AM6_EEPROM_BD_INFO_DATA ((struct ti_am6_eeprom_record_board_info *) \
+ TI_SRAM_SCRATCH_BOARD_EEPROM_START)
+
+/* AM6x TI EVM EEPROM DDR info structure */
+#define TI_AM6_EEPROM_DDR_CTRL_INSTANCE_MASK GENMASK(1, 0)
+#define TI_AM6_EEPROM_DDR_CTRL_INSTANCE_SHIFT 0
+#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_MASK GENMASK(3, 2)
+#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_NA (0 << 2)
+#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_BOARDID (2 << 2)
+#define TI_AM6_EEPROM_DDR_CTRL_SPD_DATA_LOC_I2C51 (3 << 2)
+#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_MASK GENMASK(5, 4)
+#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_DDR3 (0 << 4)
+#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_DDR4 (1 << 4)
+#define TI_AM6_EEPROM_DDR_CTRL_MEM_TYPE_LPDDR4 (2 << 4)
+#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_MASK GENMASK(7, 6)
+#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_16 (0 << 6)
+#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_32 (1 << 6)
+#define TI_AM6_EEPROM_DDR_CTRL_IF_DATA_WIDTH_64 (2 << 6)
+#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_MASK GENMASK(9, 8)
+#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_8 (0 << 8)
+#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_16 (1 << 8)
+#define TI_AM6_EEPROM_DDR_CTRL_DEV_DATA_WIDTH_32 (2 << 8)
+#define TI_AM6_EEPROM_DDR_CTRL_RANKS_2 BIT(10)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_MASK GENMASK(13, 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_1GB (0 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_2GB (1 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_4GB (2 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_8GB (3 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_12GB (4 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_16GB (5 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_24GB (6 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_DENS_32GB (7 << 11)
+#define TI_AM6_EEPROM_DDR_CTRL_ECC BIT(14)
+
+struct ti_am6_eeprom_record_ddr_info {
+ u16 ddr_control;
+} __attribute__ ((__packed__));
+
+/* AM6x TI EVM EEPROM DDR SPD structure */
+#define TI_AM6_EEPROM_DDR_SPD_INSTANCE_MASK GENMASK(1, 0)
+#define TI_AM6_EEPROM_DDR_SPD_INSTANCE_SHIFT 0
+#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_MASK GENMASK(4, 3)
+#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_DDR3 (0 << 3)
+#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_DDR4 (1 << 3)
+#define TI_AM6_EEPROM_DDR_SPD_MEM_TYPE_LPDDR4 (2 << 3)
+#define TI_AM6_EEPROM_DDR_SPD_DATA_LEN 512
+
+struct ti_am6_eeprom_record_ddr_spd {
+ u16 spd_control;
+ u8 data[TI_AM6_EEPROM_DDR_SPD_DATA_LEN];
+} __attribute__ ((__packed__));
+
+/* AM6x TI EVM EEPROM MAC info structure */
+#define TI_AM6_EEPROM_MAC_INFO_INSTANCE_MASK GENMASK(2, 0)
+#define TI_AM6_EEPROM_MAC_INFO_INSTANCE_SHIFT 0
+#define TI_AM6_EEPROM_MAC_ADDR_COUNT_MASK GENMASK(7, 3)
+#define TI_AM6_EEPROM_MAC_ADDR_COUNT_SHIFT 3
+#define TI_AM6_EEPROM_MAC_ADDR_MAX_COUNT 32
+
+struct ti_am6_eeprom_record_mac_info {
+ u16 mac_control;
+ u8 mac_addr[TI_AM6_EEPROM_MAC_ADDR_MAX_COUNT][TI_EEPROM_HDR_ETH_ALEN];
+} __attribute__ ((__packed__));
+
+struct ti_am6_eeprom_record {
+ struct ti_am6_eeprom_record_header header;
+ union {
+ struct ti_am6_eeprom_record_board_info board_info;
+ struct ti_am6_eeprom_record_ddr_info ddr_info;
+ struct ti_am6_eeprom_record_ddr_spd ddr_spd;
+ struct ti_am6_eeprom_record_mac_info mac_info;
+ } data;
+} __attribute__ ((__packed__));
+
/* DRA7 EEPROM MAGIC Header identifier */
#define DRA7_EEPROM_HEADER_MAGIC 0xAA5533EE
#define DRA7_EEPROM_HDR_NAME_LEN 16
#define TI_EEPROM_DATA ((struct ti_common_eeprom *)\
TI_SRAM_SCRATCH_BOARD_EEPROM_START)
+/*
+ * Maximum number of Ethernet MAC addresses extracted from the AM6x on-board
+ * EEPROM during the initial probe and carried forward in SRAM.
+ */
+#define AM6_EEPROM_HDR_NO_OF_MAC_ADDR 8
+
+/**
+ * struct ti_am6_eeprom - Null terminated, usable EEPROM contents, as extracted
+ * from the AM6 on-board EEPROM. Note that we only carry a subset of data
+ * at this time to be considerate about memory consumption.
+ * @header: Magic number for data validity indication
+ * @name: NULL terminated name
+ * @version: NULL terminated version
+ * @software_revision: NULL terminated software revision
+ * @serial: Board serial number
+ * @mac_addr_cnt: Number of MAC addresses stored in this object
+ * @mac_addr: MAC addresses
+ */
+struct ti_am6_eeprom {
+ u32 header;
+ char name[AM6_EEPROM_HDR_NAME_LEN + 1];
+ char version[AM6_EEPROM_HDR_VERSION_LEN + 1];
+ char software_revision[AM6_EEPROM_HDR_SW_REV_LEN + 1];
+ char serial[AM6_EEPROM_HDR_SERIAL_LEN + 1];
+ u8 mac_addr_cnt;
+ char mac_addr[AM6_EEPROM_HDR_NO_OF_MAC_ADDR][TI_EEPROM_HDR_ETH_ALEN];
+};
+
+#define TI_AM6_EEPROM_DATA ((struct ti_am6_eeprom *) \
+ TI_SRAM_SCRATCH_BOARD_EEPROM_START)
+
/**
* ti_i2c_eeprom_am_get() - Consolidated eeprom data collection for AM* TI EVMs
* @bus_addr: I2C bus address
*/
int ti_i2c_eeprom_dra7_get(int bus_addr, int dev_addr);
+/**
+ * ti_i2c_eeprom_am6_get() - Consolidated eeprom data for AM6x TI EVMs and
+ * associated daughter cards, parsed into user-
+ * provided data structures
+ * @bus_addr: I2C bus address
+ * @dev_addr: I2C slave address
+ * @ep: Pointer to structure receiving AM6-specific header data
+ * @mac_addr: Pointer to memory receiving parsed MAC addresses. May be
+ * NULL to skip MAC parsing.
+ * @mac_addr_max_cnt: Maximum number of MAC addresses that can be stored into
+ * mac_addr. May be NULL to skip MAC parsing.
+ * @mac_addr_cnt: Pointer to a location returning how many MAC addressed got
+ * actually parsed.
+ */
+int __maybe_unused ti_i2c_eeprom_am6_get(int bus_addr, int dev_addr,
+ struct ti_am6_eeprom *ep,
+ char **mac_addr,
+ u8 mac_addr_max_cnt,
+ u8 *mac_addr_cnt);
+
+/**
+ * ti_i2c_eeprom_am6_get_base() - Consolidated eeprom data for AM6x TI EVMs
+ * @bus_addr: I2C bus address
+ * @dev_addr: I2C slave address
+ */
+int __maybe_unused ti_i2c_eeprom_am6_get_base(int bus_addr, int dev_addr);
+
/**
* board_ti_is() - Board detection logic for TI EVMs
* @name_tag: Tag used in eeprom for the board
*/
void set_board_info_env(char *name);
+/**
+ * set_board_info_env_am6() - Setup commonly used board information environment
+ * vars for AM6-type boards
+ * @name: Name of the board
+ *
+ * If name is NULL, default_name is used.
+ */
+void set_board_info_env_am6(char *name);
+
/**
* board_ti_set_ethaddr- Sets the ethaddr environment from EEPROM
* @index: The first eth<index>addr environment variable to set
projects / oweals / u-boot.git / commitdiff